duo-design.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
nia.ns.cloudflare.com	108.162.192.210 172.64.32.210 173.245.58.210 2606:4700:50::adf5:3ad2 2803:f800:50::6ca2:c0d2 2a06:98c1:50::ac40:20d2	nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
quinton.ns.cloudflare.com	108.162.195.249 162.159.44.249 172.64.35.249 2606:4700:58::a29f:2cf9 2803:f800:50::6ca2:c3f9 2a06:98c1:50::ac40:23f9	quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.64.226	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.156.42	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records7 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b	lt-in-f26.1e100.net lr-in-f27.1e100.net lr-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx4.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx5.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)2 records 48ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:9c2a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:40e2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 28ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.64.226,172.67.156.42 ech=AEX+DQBBVQAgACDErRPxnYVIm5xatoBT+boUoyz9jG+Yv5G8WqpDxDaBAQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:9c2a,2606:4700:3036::6815:40e2

📝 TXT Records2 records 183ms

TXT Record
ca3-3ddc57c8d0c8474097c6d7b35658b1fb
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (duo-design.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.duo-design.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:info@duo-design.dk

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC9078ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2411273245
Primary NS (MNAME)	nia.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

60ms

MX

50ms

AAAA

48ms

TXT

183ms

CAA

44ms

HTTPS

28ms

TLSA

146ms

SOA

0ms

MTA-STS

77ms

DNSSEC

9078ms

SRV

69ms

Total

10914ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-04 00:01:29	10914ms	2 NS 2 A 7 MX	🔓 Insecure	View
2026-07-02 00:39:46	1132ms	2 NS 2 A 7 MX	🔓 Insecure	View
2026-06-17 05:15:30	28936ms	2 NS 2 A 7 MX	🔓 Insecure	View
2026-06-17 05:10:44	2752ms	2 NS 2 A 7 MX	🔓 Insecure	View
2026-06-17 05:00:58	850ms	2 NS 2 A 7 MX	🔓 Insecure	View
2026-06-17 05:00:21	782ms	2 NS 2 A 7 MX	🔓 Insecure	View